<?php
const DISCOUNT=0.8;
$fruit1='香蕉';
$fruit2='苹果';
$fruit3='橘子';
$fruit1_num=2;
$fruit2_num=1;
$fruit3_num=3;
$fruit1_price=7.99;
$fruit2_price=6.99;
$fruit3_price=3.99;
$fruit1_total=$fruit1_num*$fruit1_price;
$fruit2_total=$fruit2_num*$fruit2_price;
$fruit3_total=$fruit3_num*$fruit3_price;
$total=($fruit1_total+$fruit2_total+$fruit3_total)*DISCOUNT;
?>
<table border="1" cellpadding="1" cellspacing="0">
    <tr>
        <td>商品名称</td>
        <td>购买数量(斤)</td>
        <td>商品价格(元/斤)</td>
    </tr>
    <tr>
        <td><?php echo $fruit1; ?></td>
        <td><?php echo $fruit1_num; ?></td>
        <td><?php echo $fruit1_price; ?></td>
    </tr>
    <tr>
        <td><?php echo $fruit2; ?></td>
        <td><?php echo $fruit2_num; ?></td>
        <td><?php echo $fruit2_price; ?></td>
    </tr>
    <tr>
        <td><?php echo $fruit3; ?></td>
        <td><?php echo $fruit3_num; ?></td>
        <td><?php echo $fruit3_price; ?></td>
    </tr>
    <tr>
        <td colspan="3">
            商品折扣：<span><?php echo DISCOUNT; ?></span>
        </td>
    </tr>
    <tr>
        <td colspan="3">
            打折后购买商品总价格：<?php echo $total; ?> 元
        </td>  
    </tr>
    <a href="index.html">点击进入首页</a>
</table>
